Negatives and positives:
It was certainly ok at the level we were expecting. Good location but beware if you are likely to be put off by the smell of sewers wafting through the window. (Must be ancient French-type street system hence the problem). And accompanying mosquitoes overnight (which had a significant volume of blood from our party of 4!). No possibility of cooked breakfast although unlimited supply of fine local cheese, yoghurt, ham slices, coffee.
Fine for us, no major problem.